CN102365848A - Wireless two-way transmission of serial data signals between an electronic device and a power meter - Google Patents
Wireless two-way transmission of serial data signals between an electronic device and a power meter Download PDFInfo
- Publication number
- CN102365848A CN102365848A CN2010800149995A CN201080014999A CN102365848A CN 102365848 A CN102365848 A CN 102365848A CN 2010800149995 A CN2010800149995 A CN 2010800149995A CN 201080014999 A CN201080014999 A CN 201080014999A CN 102365848 A CN102365848 A CN 102365848A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 55
- 230000008878 coupling Effects 0.000 claims abstract description 35
- 238000010168 coupling process Methods 0.000 claims abstract description 35
- 238000005859 coupling reaction Methods 0.000 claims abstract description 35
- 230000000630 rising effect Effects 0.000 claims abstract description 10
- 230000001939 inductive effect Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0264—Arrangements for coupling to transmission lines
- H04L25/0266—Arrangements for providing Galvanic isolation, e.g. by means of magnetic or capacitive coupling
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- H04B5/22—
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- H04B5/266—
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Abstract
The invention relates to a system for the wireless two-way transmission of data signals in serial format between a "master" electronic device (3) and a "slave" power meter (2) comprising a microcontroller (20) with a serial input port (Rx). According to the invention, the data signals in serial format are exchanged over a short distance via two-way electromagnetic coupling means (4) outputting a pulse at every rising or falling edge of said data signals in serial format. To transmit data signals from the "master" device (3) to the "slave" meter (2), the pulses output by the electromagnetic coupling means (4) are output to said serial input port (Rx). The microcontroller (20) is programmed such that every pulse received at the input port (Rx) generates a break, in order to synchronise the first received pulse and to generate, at the serial data transmission speed, a series of bits, the value of every bit generated being either equal to that of the preceding bit if no breaks were received in the meantime, or equal to the reciprocal of the value of the bit if a break was received in the meantime.
Description
Technical field
The present invention relates to the very near double-direction radio transmission of distance of two serial form data-signals between the adjacent electronic equipment.
Background technology
Hereinafter will specifically describe this serial signal in the circuit of energy meter and the transmission between the electronic equipment of outside " master ", said energy meter for example be water meter, gas meter or ammeter and be called hereinafter " from " equipment.
The circuit of energy meter generally includes microcontroller, and this microcontroller has the serial link on its dual serial port, is used to receive the first port R of serial signal
xWith the port T that is used to send serial signal
xBy means of this serial link, this microcontroller can exchange serial data with other electronic equipments.
This serial data exchange possibly be required in the different phase of energy meter length of life, and particularly:
-during manufacture various stage is before the various electronic components that comprise controller are encapsulated in the seal casinghousing of this energy meter;
-when making end, after the various electronic components that comprise microcontroller have been encapsulated in the seal casinghousing of this energy meter;
-when thereby scene this energy meter of installation makes that its parameter can be set up; With
-any time during the normal running after this energy meter has been mounted alternatively is for example in order to send data to long-range fetch equipment from this energy meter.
As long as the housing of this energy meter does not also have sealing electronic parts, each of the circuit through testboard being electrically connected to this energy meter puts that to exchange serial signal just quite easy.Therefore, specific connector needn't be provided.
On the contrary; As long as seal casinghousing has sealed electronic component; Just can not under the situation of not emitting the risk of damaging this energy meter, open housing, particularly because on some energy meter model, this housing is filled up by resin fully for this; This resin is used to protect electronic equipment not receive the harsh and unforgiving environments condition effect, and for example energy meter is soaked.In this case, equally can't be outside at this energy meter with the serial link of microcontroller between realization is any electrically contacts.
Yet, needn't be in order to make " master " external equipment to communicate by letter by means of connector with the serial link of microcontroller (" from " equipment), the known transmitted in both directions of utilizing serial data via optical link.Fig. 1 schematically shows the principle of this communication: each " master " and " from " equipment all has a pair of optical element, said optical element comprises optical transmitting set (E
1Be used for " master " equipment, E
2Be used for " from " equipment) and optical receiver (R
1Be used for " master " equipment, R
2Be used for " from " equipment), this optical transmitting set is light-emitting diode (LED) normally, and this optical receiver is photodiode or phototransistor normally." master " external equipment is via optical transmitting set E
1Transmission has the first serial signal S of two level of representative " 0 " or " 1 " Bit String
1, this signal is by the receiver R of the serial port (not shown) that is connected to microcontroller
2Receive.Equally, " from " equipment is through via its reflector E
2At its serial transmit port T
XSecond pair of level serial signal of last transmission S
2Respond this " master " equipment, this pair level has been represented " 0 " or " 1 " Bit String equally, and this signal is by the receiver R of " master " equipment
1Receive.
The advantage of this smooth exchanges data is serial data signal S
1And S
2Under the situation that need not to change, be sent out, and need do not carry out any conversion in reception place.When " from " the serial port R of the microcontroller of equipment
xReceive serial data signal S
1The time; Microcontroller is designed such that first reception of beginning bit produce is interrupted; Make thus this microcontroller can be synchronously it is own and initiate routine then, this routine enables to read the state in the middle of each bit after the beginning bit and thereby recover the data to its transmission with the known speed that receives Bit String.Yet major defect is this fact: wall 1 must be provided on the energy meter housing, this wall at least as far as employed optical wavelength for transparent.Because the whole housing of energy meter can not be transparent, therefore transparent wall need be provided partly, this has caused the risk that impairs housing seal property thus.In addition, energy meter must comprise optical transmitting set and optical receiver, and this has increased manufacturing cost thus.When only between the manufacturing of energy meter and installation period, using the transmission of this serial signal, especially do not expect to produce this extra cost.
File DE 10 2,005 051 117 A1 also disclose the communication interface between a kind of energy meter and the evaluation module, and wherein handshaking is to realize through the capacitive coupling between the capacitive electrode on energy meter and the module wall separately.The tangible advantage of this interface is that the signal transmission can realize through plastic casing and resin.Yet capacitive coupling only allows to transmit the signal that has changed and does not transmit fixed level.This does not counteract in the background of file DE 10 2,005 051 117 A1, and the IrDA agreement is used in the transmission of the signal that this document regulation is generated, and promptly signal takes to have the form of the pulse train of very short duration.
Yet this interface is inappropriate for the transmission serial signal because reception place must be from the variable signal that receives through capacitive coupling the reconstruct serial signal.
At last, the wireless data exchange solution of utilizing inductance coupling high between energy meter and the measuring equipment is known.As above-mentioned capacitive coupling, the exchanges data that realizes through inductance coupling high is merely able to transmit the signal that has changed.If the signal of exchange is a serial form, RS232 reference format for example then must be provided for the device of the fixed level of reconstruction signal from variable signal in reception place.
For example, the system that is used for the transmitted in both directions serial signal according to the leading part of claim 1 has been described in file EP 0 977 406.
Summary of the invention
The objective of the invention is to propose the solution that a kind of electromagnetic coupled that is used between energy meter and " master " electronic equipment, utilizing electric capacity or inductive type exchanges serial data; This solution can not increase the energy meter cost, promptly need not come the reconstruct serial signal by means of the add ons of costliness.
According to the present invention, this purpose reaches like the double-direction radio transmission system that is used for the serial form data-signal that limits in the claim 1 through a kind of.
Said " master " electronic equipment preferably includes the interface that inserts between serial form data-signal transmission/receiving system and the said electromagnetic coupling device.For from said " master " electronic equipment to " from " energy meter sends data-signal; Said interface comprises the high-voltage pulse maker, and this maker receives the serial form data-signal that sent by said transmission/receiving system and sends each rising or the high-voltage pulse on the trailing edge in the serial form data-signal that is received at output.
For from said " from " energy meter sends data-signal to said " master " electronic equipment; Serial form data-signal to be sent is delivered to said electromagnetic coupling device by the output port of microcontroller; And said interface preferably includes the serial signal maker, and the input of this maker is connected to the output of said coupling device and sends the serial form data-signal at its output to said transmission/receiving system.
Said electromagnetic coupling device can be an inductive type.In this case, thus said electromagnetic coupling device preferably includes two coils of the plastic wall both sides that are positioned at said energy meter housing constitutes transformers.
As modification, said electromagnetic coupling device can be capacitive based.In this case, thus four conductive plates that they preferably include the plastic wall both sides of the housing that is positioned at said energy meter constitute transmission electric capacity with paired mode.
Description of drawings
With reference to accompanying drawing, through reading following description, can understand the present invention better, wherein:
Fig. 1 that-preceding text have been described shows the known principle via optical link exchange serial signal;
-Fig. 2 with the form of simplified block diagram show through " master " equipment and comprise microcontroller " from " electromagnetic coupled between the energy meter exchange serial data according to principle of the present invention;
-Fig. 3 shows the equivalent circuit diagram that is used for through the inductance coupling high transmission;
-Fig. 4 shows the equivalent circuit diagram that is used for through the capacitive coupling transmission;
-Fig. 5 shows the preferred embodiment of the high pressure maker that is used for " master " equipment through inductance coupling high transmission;
-Fig. 6 shows the preferred embodiment of the high pressure maker that is used for " master " equipment through capacitive coupling transmission;
-Fig. 7 show respectively by " master " equipment with " from " example of the microcontroller of the energy meter signal that sends and receive, and the processing of carrying out by microcontroller;
-Fig. 8 show respectively by " from " example of microcontroller and " master " equipment of energy meter signal of sending and receiving, and by the processing of the interface execution of " master " equipment;
-Fig. 9 show be used for through inductance coupling high transmission " from " embodiment of the interface circuit of energy meter; With
-Figure 10 show be used for through capacitive coupling transmission " from " embodiment of the interface circuit of energy meter.
Embodiment
Fig. 2 with the form of simplified block diagram show constitute by the energy meter that comprises microcontroller 20 " from " needed parts of bidirectional linked list data communication between " master " electronic equipment 3 of equipment 2 and for example testing equipment.Recall, " master " equipment 3 and " from " signal of exchange between the equipment 2 is the signal of serial type, for example with the asynchronous signal of RS232 reference format.This serial signal has two fixed levels (for battery powered apparatus normally 0/5 volt or 0/3 volt) and they have represented " 0 " or " 1 " Bit String.
Bidirectional data transfers is that the electromagnetic coupled through electric capacity or inductive type realizes.With dashed lines frame 4 schematically shows this electromagnetic coupled among Fig. 2.
The upper reaches of the microcontroller 20 in receive direction also provide two interfaces that are used to carry out the function that will be described hereinafter, first interface 31 that promptly is used for " master " equipment be used for " from " second interface 21 of energy meter.
Under the situation of inductive type electromagnetic coupled, two coil L
1And L
2Be placed in the both sides of the plastic wall 1 of energy meter housing.These two coils constitute transformer.Fig. 3 has provided equivalent circuit diagram.If via coil L
1Send electric current front end I
e, coil L then
2Received current pulse I
r(has low load impedance R
L) or potential pulse V
r(has high capacity impedance R
L).Transmission is two-way and impulse level is asymmetric, enables to reduce the cost of energy meter thus.Thereby should be pointed out that the quite little function of amplifying the transmission signal that preferably provides of coupling factor in this transmission.
Under the situation of capacitor type electromagnetic coupled, four conductive plate P
1To P
4Be placed in the both sides of the plastic wall 1 of energy meter housing, so that they constitute transmission electric capacity in couples.Fig. 4 has provided equivalent circuit diagram.If at two plate P
1And P
2Between send voltage front end V
e, then will be at plate P
3And P
4Between receive potential pulse V
r, the pulse duration is depended on time constant R
L* C
L, R wherein
LBe load impedance and C
LIt is load parasitic capacitance.Transmission is two-way equally and impulse level is asymmetric, has reduced the cost of energy meter thus.Can find out that from the circuit diagram of Fig. 4 conductive plate cooperates with load parasitic capacitance constituting voltage divider so that the amplitude that receives signal with following proportionate relationship less than sending signal amplitude:
Vr/Ve＝C
T/C
L。
The value grade of considering electric capacity is (for C
TBe that 0.3 picofarad (PF) arrives 1PF, and for C
LBe that 10PF is to 20PF), receive the amplitude of signal thereby can be send signal amplitude 1/20th to 1/40th.Therefore, equally signal amplifying function need be provided.
Therefore, send and receive no matter the type of selected electromagnetic transmission how, has only the rising and falling edges of serial signal to be sent to be actually with the form of pulse, and must be from received pulse the reconstruct serial signal.In addition, under the situation of these two kinds of transmission, must provide level to amplify to sending signal.
In order to simplify second interface 21 as far as possible, specified signal enlarging function of the present invention is not to be carried out by the interface 21 of energy meter, but is carried out by the interface 31 of " master " equipment.
Particularly, first interface 31 of " master " equipment comprises:
-high-voltage pulse maker 310, its reception is by the serial data signal of transmission/receiving system 30 transmissions of " master " equipment and the pulse of sending the amplification level on each edge of serial data signal; With
-amplifying device 311, its receive the pulse of sending by electromagnetic coupling device 4 and cause thus by " from " energy meter sends serial data signal, thereby and the corresponding serial data signal of reconstruct it is delivered to serial form transmission/receiving system 30.
Fig. 5 and 6 shows the preferred embodiment of the high-voltage pulse maker 310 under the situation of sending through inductance coupling high and sending through capacitive coupling respectively.It is to utilize coil L that pulse generates
1The known principle of charging is carried out, up to the electric current that obtains to confirm, and coil discharge then, charging and discharge cycle are by transistor controls.Should be pointed out that under the situation of sending this directly is exactly the coil L that uses in the maker 310 through inductance coupling high
1
As indicated above, for go to from " master " equipment " from " serial signal of the equipment function of carrying out reconstruct should not increase the cost of energy meter.For this reason, the present invention's regulation is come these signals of reconstruct by means of the specific software routine in the microcontroller 20, and this microcontroller is at serial port R
XThe last pulse that receives by the electromagnetic coupling device transmission.
Specific software routines is to carry out the following step:
-microcontroller 20 produces interruption on each received pulse, this received pulse is corresponding to each rising or trailing edge in the serial data signal that is sent;
-microcontroller 20 is own synchronous with first received pulse corresponding to the rising edge of the beginning bit of transmission serial data signal with it, and with the Serial Data Transfer Mode speed operation with the generation Bit String, the value of each bit that generates:
, ο equals the value of last bit if not receiving any interruption at this moment; And
If ο receives interruption at this moment then equals the value opposite with the value of last bit.
Fig. 7 shows the example that how is generated Bit String by microcontroller.In the figure, first sequential chart shows the shape of the serial data signal that is sent by " master " equipment at interface 31 upper reaches.This serial data signal is made up of Bit String, and beginning of signal is to be that 1 beginning bit identifies through value.In this example, signal has the form of " 10011101010 ".
Second sequential chart shows the shape of the high-voltage pulse that is generated by high pressure maker 310, and these pulses are corresponding to each rising or trailing edge in the serial data signal that is sent by " master " equipment.Consider the 310 needed processing times of maker, these pulses are squinted (being about the delay of 100 microseconds (μ s)) with respect to the rising and falling edges of the signal that is sent in time slightly.These pulses for example are sent out through electric capacity or inductance electromagnetic coupled.The 3rd sequential chart shows microcontroller 20 by energy meter at serial port R
XInput on the interruption that generates in each pulse of being received.Last sequential chart shows the Bit String that is generated through the rule of using top appointment by microcontroller.Recovered signal " 1001110101 " well like initial transmission.
Fig. 8 show when from " from " microcontroller 20 of energy meter generates the example of serial data signal when " master " equipment sends serial data signal.In the figure, first sequential chart shows direct serial port T from microcontroller
XThe shape of the serial data signal that sends.This serial data signal is made up of Bit String, the beginning of signal with value be 1 beginning bit as a token of.In this example, signal is the form with " 10011101010 ".Second sequential chart shows the signal that on the input of interface 31, receives, more precisely at the input of signal generator 311.Because electromagnetic coupled, this signal comprises each rising or the corresponding pulse train of trailing edge with the serial signal that is sent.The 3rd sequential chart shows the output from maker 311, and this output is very exactly corresponding to the signal " 10011101010 " like initial transmission.
At first since software service be used to reconstruct from " master " equipment to " from " serial signal the direction of equipment, and next carries out in " master " equipment owing to enlarging function, so the cost of energy meter is quite low.
Fig. 9 shows the interface 21 of the energy meter 2 that is used for the inductive type transmission.Constitute the coil L of transformer secondary output
2Be placed in inboard wall 1 place of housing., another coil L
1Preferably be positioned on the lateral wall of " master " electronic equipment.Needed voltage level produces interruption thereby the circuit that comprises bipolar transistor and resistor is used to reduce the microcontroller input.
Figure 10 shows the interface 21 of the energy meter 2 that is used for the capacitor type transmission.Two plate P
3And P
4Can be at inboard wall 1 place of housing directly by carried, plate P
3Be connected to ground and plate P
4Be connected to the input and output port R of microcontroller 20
XAnd T
XOnly need a pull down resistor R in this circuit
PDTwo other plate P
1And P
2Also can carry by the wall 1 of hull outside.As modification, plate P
1And P
2On the lateral wall of " master " electronic equipment, carried.
Transmission system of the present invention is compatible with any two-wire serial communication protocol.The interface 31 of " master " equipment is not carried out any protocol conversion, and just in a transmission direction, front end is converted to pulse and in another direction, pulses switch is become level.Microcontroller 20 uses the communication software identical with wire transmission, except add a software that is used for management interrupt at the upper reaches.
Claims (7)
- One kind be used for " master " first electronic equipment (3) and " from " transmission system of double-direction radio transmission serial form data-signal between second electronic equipment (2); Said serial form data-signal is exchanged in short range by means of sending at output at the bi-directional electromagnetic coupling device (4) of each rising of said serial form data-signal or the pulse on the trailing edge; It is characterized in that, said " from " second electronic equipment is to comprise having serial input terminal mouth (R x) the energy meter (2) of microcontroller (20), for from said " master " electronic equipment (3) to said " from " energy meter (2) sends data-signal, the pulse on said electromagnetic coupling device (4) output directly is delivered to said serial input terminal mouth (R x) positive pulse, and said microcontroller (20) is designed to:-be directed against at said input port (R x) each pulse of go up receiving and produce interruption,-himself and first received pulse is synchronous; And-generate Bit String, the value of the bit that each generated with the transmission speed of said serial data:, ο equals the value of last bit if not receiving any interruption at this moment; AndIf ο receives interruption at this moment then equals the value opposite with the value of last bit.
- 2. transmission system according to claim 1; It is characterized in that; Said " master " electronic equipment (3) comprises the said transmission/receiving system (30) that is inserted in said serial form data-signal and the interface (31) between the said electromagnetic coupling device (4); And for from said " master " electronic equipment (3) to said " from " energy meter (2) sends data-signal; Said interface (31) comprises high-voltage pulse maker (310), and this high-voltage pulse maker receives by the serial form data-signal of said transmission/receiving system (30) transmission and at output and sends each rising of the serial form data-signal that is being received or the high-voltage pulse on the trailing edge.
- 3. transmission system according to claim 2 is characterized in that, for from said " from " energy meter (2) sends data-signal to said " master " electronic equipment (3), serial form data-signal to be sent is by the output (T of said microcontroller (20) x) be delivered to said electromagnetic coupling device (4); And said interface (31) comprises serial signal maker (311), and output and its output that the input of this serial signal maker is connected to said coupling device are delivered to said transmission/receiving system (30) with said serial form data-signal.
- 4. according to the described transmission system of aforementioned arbitrary claim, it is characterized in that said electromagnetic coupling device (4) is an inductive type.
- 5. transmission system according to claim 4 is characterized in that, said electromagnetic coupling device (4) comprises two coils (L1, L2) of plastic wall (1) both sides of the housing that is positioned at said energy meter (2), thereby constitutes transformer.
- 6. according to each described transmission system in the claim 1 to 3, it is characterized in that said electromagnetic coupling device (4) is capacitive based.
- 7. transmission system according to claim 6 is characterized in that, said electromagnetic coupling device (4) comprises four conductive plate (P of plastic wall (1) both sides of the housing that is positioned at said energy meter (2) 1To P 4), thereby constitute transmission electric capacity in couples.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP09305314A EP2242223B1 (en) | 2009-04-14 | 2009-04-14 | Wireless bi-directional transmission of serial data signals between an electronic device and an energy meter |
| EP09305314.8 | 2009-04-14 | ||
| PCT/EP2010/053884 WO2010118940A1 (en) | 2009-04-14 | 2010-03-25 | Wireless two-way transmission of serial data signals between an electronic device and a power meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102365848A true CN102365848A (en) | 2012-02-29 |
| CN102365848B CN102365848B (en) | 2014-03-26 |
Family
ID=41056732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080014999.5A Expired - Fee Related CN102365848B (en) | 2009-04-14 | 2010-03-25 | Wireless two-way transmission of serial data signals between an electronic device and a power meter |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US8661176B2 (en) |
| EP (1) | EP2242223B1 (en) |
| CN (1) | CN102365848B (en) |
| AT (1) | ATE523010T1 (en) |
| AU (1) | AU2010237234B2 (en) |
| BR (1) | BRPI1011842A2 (en) |
| CA (1) | CA2763011C (en) |
| CL (1) | CL2011002404A1 (en) |
| ES (1) | ES2370587T3 (en) |
| IL (1) | IL215069A0 (en) |
| MA (1) | MA33204B1 (en) |
| MX (1) | MX2011010608A (en) |
| WO (1) | WO2010118940A1 (en) |
| ZA (1) | ZA201106621B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694583A (en) * | 2012-05-21 | 2012-09-26 | 西安交通大学 | Transmission system and transmission method of non-contact magnetic signals in high hydraulic environment |
| CN103607225A (en) * | 2013-11-29 | 2014-02-26 | 西安电子科技大学 | Non-contact data transmission device based on self-adaption conducting media |
| CN104272601A (en) * | 2012-05-03 | 2015-01-07 | 阿特拉斯·科普柯工业技术公司 | Transmission of signals through a non-contact interface |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180278079A1 (en) * | 2012-01-11 | 2018-09-27 | Wheel Charge Technologies LLC | Apparatus for Wireless Power Transmission Between an External Power Source and an Electric Mobility Vehicle |
| WO2014057318A1 (en) * | 2012-10-10 | 2014-04-17 | Freescale Semiconductor, Inc. | Method and apparatus for providing electrical isolation |
| WO2014136244A1 (en) * | 2013-03-07 | 2014-09-12 | パイオニア株式会社 | Control system |
| EP3072026B1 (en) | 2013-11-22 | 2019-07-31 | NXP USA, Inc. | Method and apparatus for controlling an igbt device |
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| US6853685B1 (en) * | 1998-07-17 | 2005-02-08 | Stephan Konrad | Circuit arrangement for the electrically isolated transfer of digital signals |
| US20060109918A1 (en) * | 2004-11-19 | 2006-05-25 | Dave Brown | Transformer data coupler with high common mode immunity |
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| KR19990072936A (en) * | 1998-02-27 | 1999-09-27 | 가나이 쓰도무 | Isolator and modem unit using the same |
| DE59915083D1 (en) * | 1998-07-17 | 2009-11-05 | Endress & Hauser Wetzer Gmbh | Circuit arrangement for the galvanically separated transmission of digital signals |
| US6751563B2 (en) * | 2001-05-11 | 2004-06-15 | Electro Industries/Gauge Tech | Electronic power meter |
| US7038553B2 (en) * | 2002-10-03 | 2006-05-02 | International Business Machines Corporation | Scalable computer system having surface-mounted capacitive couplers for intercommunication |
| KR100990484B1 (en) * | 2004-03-29 | 2010-10-29 | 삼성전자주식회사 | Transmission clock signal generator for serial bus communication |
| US7446672B2 (en) | 2005-03-24 | 2008-11-04 | M&Fc Holding, Llc | Method and apparatus for coupling a meter register to an automatic meter reading communication device |
| US7221286B2 (en) | 2005-04-08 | 2007-05-22 | M&Fc Holding, Llc | Inductive communications port for an automatic meter reading communication device |
| DE102005051117A1 (en) | 2005-10-24 | 2007-04-26 | Hydrometer Gmbh | Communication-interface for e.g. flow meter, has capacitance electrodes that are arranged at different positions of modules, such that coupling capacitor is formed between modules for data transmission, by adjacent arrangement of modules |
-
2009
- 2009-04-14 AT AT09305314T patent/ATE523010T1/en not_active IP Right Cessation
- 2009-04-14 EP EP09305314A patent/EP2242223B1/en active Active
- 2009-04-14 ES ES09305314T patent/ES2370587T3/en active Active
-
2010
- 2010-03-25 BR BRPI1011842A patent/BRPI1011842A2/en not_active IP Right Cessation
- 2010-03-25 CN CN201080014999.5A patent/CN102365848B/en not_active Expired - Fee Related
- 2010-03-25 AU AU2010237234A patent/AU2010237234B2/en active Active
- 2010-03-25 US US13/260,856 patent/US8661176B2/en active Active
- 2010-03-25 MX MX2011010608A patent/MX2011010608A/en active IP Right Grant
- 2010-03-25 CA CA2763011A patent/CA2763011C/en active Active
- 2010-03-25 WO PCT/EP2010/053884 patent/WO2010118940A1/en active Application Filing
- 2010-03-25 MA MA34261A patent/MA33204B1/en unknown
-
2011
- 2011-09-09 ZA ZA2011/06621A patent/ZA201106621B/en unknown
- 2011-09-11 IL IL215069A patent/IL215069A0/en unknown
- 2011-09-28 CL CL2011002404A patent/CL2011002404A1/en unknown
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| EP0282102B1 (en) * | 1987-03-12 | 1994-11-02 | The Boeing Company | Binary data communication system |
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| US6853685B1 (en) * | 1998-07-17 | 2005-02-08 | Stephan Konrad | Circuit arrangement for the electrically isolated transfer of digital signals |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104272601A (en) * | 2012-05-03 | 2015-01-07 | 阿特拉斯·科普柯工业技术公司 | Transmission of signals through a non-contact interface |
| CN104272601B (en) * | 2012-05-03 | 2016-03-30 | 阿特拉斯·科普柯工业技术公司 | Signal passes through transmission system and the method for the transmission of non-contact interface |
| CN102694583A (en) * | 2012-05-21 | 2012-09-26 | 西安交通大学 | Transmission system and transmission method of non-contact magnetic signals in high hydraulic environment |
| CN103607225A (en) * | 2013-11-29 | 2014-02-26 | 西安电子科技大学 | Non-contact data transmission device based on self-adaption conducting media |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2010237234B2 (en) | 2014-08-28 |
| CA2763011C (en) | 2016-07-19 |
| MA33204B1 (en) | 2012-04-02 |
| MX2011010608A (en) | 2011-12-08 |
| WO2010118940A1 (en) | 2010-10-21 |
| CN102365848B (en) | 2014-03-26 |
| US8661176B2 (en) | 2014-02-25 |
| BRPI1011842A2 (en) | 2016-03-15 |
| ATE523010T1 (en) | 2011-09-15 |
| EP2242223A1 (en) | 2010-10-20 |
| ZA201106621B (en) | 2012-11-28 |
| CL2011002404A1 (en) | 2012-01-13 |
| AU2010237234A2 (en) | 2011-11-10 |
| IL215069A0 (en) | 2011-11-30 |
| EP2242223B1 (en) | 2011-08-31 |
| ES2370587T3 (en) | 2011-12-20 |
| AU2010237234A1 (en) | 2011-10-06 |
| CA2763011A1 (en) | 2010-10-21 |
| US20120047300A1 (en) | 2012-02-23 |
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